Heat wave in Japan and 2 other countries, 19 May to 7 June 2022

Name: Heat wave in Japan and 2 other countries, 19 May to 7 June 2022
Start: 2022-05-19
End: 2022-06-07
Location: Japan, China, Korea, South

Heat wave in Japan and 2 other countries, 19 May to 7 June 2022: 143 records at 95 stations, peak on 29 May 2022. Closed.

Data as of 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Key Facts

Heat wave in Japan and 2 other countries, 19 May to 7 June 2022 set or tied 143 station records at 95 stations.
It ran from 19 May 2022 to 7 June 2022 (20 days) and its peak day was 29 May 2022.
Status: closed.
Hikone set a monthly record high maximum temperature of 32.2 C (90.0 F) on 30 May 2022.
The busiest day was 29 May 2022 with 45 records.
The oldest broken record in the ranked list had stood for 64 years.

Footprint

19 May to 7 June 2022

The area covered by Heat wave in Japan and 2 other countries, 19 May to 7 June 2022 is outlined, with 19 of the stations that set records marked, coloured by record type. Made with Natural Earth.

Footprint of Heat wave in Japan and 2 other countries, 19 May to 7 June 2022: stations that set records in the event
Station	Type	Value	Date
Hikone	Record high maximum temperature	32.2 C (90.0 F)	2022-05-30
Izuhara	Record high minimum temperature	20.3 C (68.5 F)	2022-05-27
Zhangwu	Record high maximum temperature	32.8 C (91.0 F)	2022-05-24
Ishinomaki	Record high maximum temperature	28.2 C (82.8 F)	2022-05-29
Utsunomiya	Record high maximum temperature	33.2 C (91.8 F)	2022-05-29
Miyakejima	Record high maximum temperature	26.9 C (80.4 F)	2022-05-29
Sumoto	Record high maximum temperature	30.9 C (87.6 F)	2022-05-29
Anyang	Record high minimum temperature	24.2 C (75.6 F)	2022-06-04
Tokyo	Record high maximum temperature	31.2 C (88.2 F)	2022-05-29
Kochi	Record high maximum temperature	29.8 C (85.6 F)	2022-05-31
Chengshantou	Record high maximum temperature	28.8 C (83.8 F)	2022-05-22
Shionomisaki	Record high maximum temperature	26.9 C (80.4 F)	2022-05-29
Shimizu	Record high maximum temperature	27.9 C (82.2 F)	2022-05-31
Dalian	Record high maximum temperature	28.5 C (83.3 F)	2022-05-22
Shenyang	Record high maximum temperature	31.5 C (88.7 F)	2022-05-25
Maebashi	Record high maximum temperature	34.3 C (93.7 F)	2022-05-29
Kofu	Record high maximum temperature	33.7 C (92.7 F)	2022-05-29
Chichibu	Record high maximum temperature	33.8 C (92.8 F)	2022-05-29
Owase	Record high maximum temperature	32.0 C (89.6 F)	2022-05-29

Records per Day

Peak day 45

Records set or tied each day from 19 May 2022 to 7 June 2022. The most in one day was 45 on 29 May 2022.

Records per day during Heat wave in Japan and 2 other countries, 19 May to 7 June 2022
Date	Records
2022-05-19	2
2022-05-21	2
2022-05-22	9
2022-05-23	4
2022-05-24	7
2022-05-25	6
2022-05-27	4
2022-05-28	13
2022-05-29	45
2022-05-30	5
2022-05-31	3
2022-06-01	3
2022-06-02	7
2022-06-03	17
2022-06-04	12
2022-06-05	1
2022-06-06	1
2022-06-07	2

Top Records by Margin

Margin over the record replaced

Top records of Heat wave in Japan and 2 other countries, 19 May to 7 June 2022 ranked by margin
Utsunomiya, 05-29	3.6 C (6.5 F)
Chichibu, 05-29	2.9 C (5.2 F)
Sumoto, 05-29	2.8 C (5.0 F)
Maebashi, 05-29	2.8 C (5.0 F)
Chengshantou, 05-22	2.6 C (4.7 F)
Kofu, 05-29	2.3 C (4.1 F)
Izuhara, 05-27	2.0 C (3.6 F)
Zhangwu, 05-24	1.8 C (3.2 F)
Anyang, 06-04	1.5 C (2.7 F)
Izuhara, 05-22	0.9 C (1.6 F)
Ishinomaki, 05-29	0.8 C (1.4 F)
Miyakejima, 05-29	0.8 C (1.4 F)
Tokyo, 05-29	0.8 C (1.4 F)
Hikone, 05-30	0.6 C (1.1 F)
Dalian, 05-22	0.6 C (1.1 F)

Margin is how far the new value is beyond the record it replaced. Ties are not shown.

Margin Against Age of the Broken Record

143 records plotted by how far they beat the old record (across) and how many years the old record had stood (up). Long standing records beaten by a wide margin sit in the top right.

Margin against age of the broken record in Heat wave in Japan and 2 other countries, 19 May to 7 June 2022
Margin (C)	Years the old record stood
0.6	54
2.0	61
1.8	61
1.5	55
0.8	64
3.6	41
0.8	60
2.8	43
0.8	60
0.9	60
0.5	64
2.6	40
0.2	64
0.2	64
0.2	63
0.6	56
2.8	40
2.3	40
2.9	40
0.2	60
2.4	43
1.4	48
2.1	41
1.5	51
0.7	52
2.0	40
1.4	43
1.8	43
0.3	55
0.8	51
1.4	40
0.4	56
1.1	44
2.7	35
1.2	40
0.5	51
1.3	37
0.2	55
1.5	41
1.4	40
1.1	40
1.3	40
2.3	21
1.5	41
1.0	47
3.6	17
0.3	45
1.3	43
0.9	44
2.6	25
0.8	40
0.7	40
0.6	41
0.5	44
1.1	27
0.7	35
0.2	43
0.2	40
1.4	28
0.2	43
0.4	44
0.7	40
2.0	23
1.3	29
0.4	36
0.8	39
1.5	29
0.2	39
0.1	33
0.6	36
1.1	23
0.8	25
0.3	24
0.5	31
1.2	21
0.2	35
1.1	21
0.7	21
1.2	29
0.8	20
0.1	29
0.8	28
1.1	17
1.1	17
0.4	24
0.2	35
0.2	35
0.5	31
0.6	20
0.4	20
0.4	20
0.3	23
0.7	23
1.1	20
0.5	20
0.3	21
1.3	4
0.5	17
0.1	24
0.6	21
1.7	7
0.5	20
0.1	24
0.6	17
0.3	21
0.4	23
0.1	21
1.6	8
0.4	17
0.1	20
1.2	8
0.8	8
1.3	8
0.2	19
1.1	7
0.3	23
0.7	12
2.0	4
0.1	29
1.5	4
0.1	21
0.8	7
1.3	3
0.2	13
0.4	9
0.3	12
0.4	9
0.6	7
0.1	17
0.1	17
0.2	9
0.8	1
0.2	7
0.9	3
0.3	7
0.2	4
0.3	5
0.1	5
0.6	9
0.2	12
0.1	0
0.3	4
0.5	3

Compared With Other Events

Station records per event

Station records in Heat wave in Japan and 2 other countries, 19 May to 7 June 2022 compared with similar events
Heat wave in United States and Mexico, 16 January to 14 February 2024	9,869 records
Heat wave in United States, 28 January to 24 February 2026	6,528 records
Heat wave in United States and Mexico, 24 May to 19 June 2020	5,047 records
Heat wave in United States and Mexico, 26 March to 17 April 2021	3,669 records
Heat wave in Germany and 49 other countries, 18 December 2021 to 15 January 2022	3,626 records
Heat wave in Japan and 2 other countries, 19 May to 7 June 2022 (this event)	143 records

Every Record Set

20 of 143

Every record set or tied during Heat wave in Japan and 2 other countries, 19 May to 7 June 2022, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2022-05-22	Izuhara	Record high maximum temperature	28.4 C (83.1 F)	0.9 C (1.6 F)	60	27 of 100 (Routine)
2022-05-22	Chengshantou	Record high maximum temperature	28.8 C (83.8 F)	2.6 C (4.7 F)	40	26 of 100 (Routine)
2022-05-22	Dalian	Record high maximum temperature	28.5 C (83.3 F)	0.6 C (1.1 F)	56	25 of 100 (Routine)
2022-05-24	Zhangwu	Record high maximum temperature	32.8 C (91.0 F)	1.8 C (3.2 F)	61	29 of 100 (Routine)
2022-05-25	Shenyang	Record high maximum temperature	31.5 C (88.7 F)	0.2 C (0.4 F)	63	25 of 100 (Routine)
2022-05-27	Izuhara	Record high minimum temperature	20.3 C (68.5 F)	2.0 C (3.6 F)	61	32 of 100 (Routine)
2022-05-29	Ishinomaki	Record high maximum temperature	28.2 C (82.8 F)	0.8 C (1.4 F)	64	28 of 100 (Routine)
2022-05-29	Utsunomiya	Record high maximum temperature	33.2 C (91.8 F)	3.6 C (6.5 F)	41	28 of 100 (Routine)
2022-05-29	Miyakejima	Record high maximum temperature	26.9 C (80.4 F)	0.8 C (1.4 F)	60	28 of 100 (Routine)
2022-05-29	Sumoto	Record high maximum temperature	30.9 C (87.6 F)	2.8 C (5.0 F)	43	28 of 100 (Routine)
2022-05-29	Tokyo	Record high maximum temperature	31.2 C (88.2 F)	0.8 C (1.4 F)	60	27 of 100 (Routine)
2022-05-29	Shionomisaki	Record high maximum temperature	26.9 C (80.4 F)	0.2 C (0.4 F)	64	26 of 100 (Routine)
2022-05-29	Maebashi	Record high maximum temperature	34.3 C (93.7 F)	2.8 C (5.0 F)	40	25 of 100 (Routine)
2022-05-29	Kofu	Record high maximum temperature	33.7 C (92.7 F)	2.3 C (4.1 F)	40	25 of 100 (Routine)
2022-05-29	Chichibu	Record high maximum temperature	33.8 C (92.8 F)	2.9 C (5.2 F)	40	25 of 100 (Routine)
2022-05-29	Owase	Record high maximum temperature	32.0 C (89.6 F)	0.2 C (0.4 F)	60	25 of 100 (Routine)
2022-05-30	Hikone	Record high maximum temperature	32.2 C (90.0 F)	0.6 C (1.1 F)	54	34 of 100 (Routine)
2022-05-31	Kochi	Record high maximum temperature	29.8 C (85.6 F)	0.5 C (0.9 F)	64	27 of 100 (Routine)
2022-05-31	Shimizu	Record high maximum temperature	27.9 C (82.2 F)	0.2 C (0.4 F)	64	26 of 100 (Routine)
2022-06-04	Anyang	Record high minimum temperature	24.2 C (75.6 F)	1.5 C (2.7 F)	55	28 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 143 records the event counts. The counts above use the full total.

Download the Data

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17. Events are found by this site from station records and are not official designations. Records are provisional until reprocessed.

Margin (C)	Years the old record stood
0.6	54
2.0	61
1.8	61
1.5	55
0.8	64
3.6	41
0.8	60
2.8	43
0.8	60
0.9	60
0.5	64
2.6	40
0.2	64
0.2	64
0.2	63
0.6	56
2.8	40
2.3	40
2.9	40
0.2	60
2.4	43
1.4	48
2.1	41
1.5	51
0.7	52
2.0	40
1.4	43
1.8	43
0.3	55
0.8	51
1.4	40
0.4	56
1.1	44
2.7	35
1.2	40
0.5	51
1.3	37
0.2	55
1.5	41
1.4	40
1.1	40
1.3	40
2.3	21
1.5	41
1.0	47
3.6	17
0.3	45
1.3	43
0.9	44
2.6	25
0.8	40
0.7	40
0.6	41
0.5	44
1.1	27
0.7	35
0.2	43
0.2	40
1.4	28
0.2	43
0.4	44
0.7	40
2.0	23
1.3	29
0.4	36
0.8	39
1.5	29
0.2	39
0.1	33
0.6	36
1.1	23
0.8	25
0.3	24
0.5	31
1.2	21
0.2	35
1.1	21
0.7	21
1.2	29
0.8	20
0.1	29
0.8	28
1.1	17
1.1	17
0.4	24
0.2	35
0.2	35
0.5	31
0.6	20
0.4	20
0.4	20
0.3	23
0.7	23
1.1	20
0.5	20
0.3	21
1.3	4
0.5	17
0.1	24
0.6	21
1.7	7
0.5	20
0.1	24
0.6	17
0.3	21
0.4	23
0.1	21
1.6	8
0.4	17
0.1	20
1.2	8
0.8	8
1.3	8
0.2	19
1.1	7
0.3	23
0.7	12
2.0	4
0.1	29
1.5	4
0.1	21
0.8	7
1.3	3
0.2	13
0.4	9
0.3	12
0.4	9
0.6	7
0.1	17
0.1	17
0.2	9
0.8	1
0.2	7
0.9	3
0.3	7
0.2	4
0.3	5
0.1	5
0.6	9
0.2	12
0.1	0
0.3	4
0.5	3

Margin (C)	Years the old record stood
0.6	54
2.0	61
1.8	61
1.5	55
0.8	64
3.6	41
0.8	60
2.8	43
0.8	60
0.9	60
0.5	64
2.6	40
0.2	64
0.2	64
0.2	63
0.6	56
2.8	40
2.3	40
2.9	40
0.2	60
2.4	43
1.4	48
2.1	41
1.5	51
0.7	52
2.0	40
1.4	43
1.8	43
0.3	55
0.8	51
1.4	40
0.4	56
1.1	44
2.7	35
1.2	40
0.5	51
1.3	37
0.2	55
1.5	41
1.4	40
1.1	40
1.3	40
2.3	21
1.5	41
1.0	47
3.6	17
0.3	45
1.3	43
0.9	44
2.6	25
0.8	40
0.7	40
0.6	41
0.5	44
1.1	27
0.7	35
0.2	43
0.2	40
1.4	28
0.2	43
0.4	44
0.7	40
2.0	23
1.3	29
0.4	36
0.8	39
1.5	29
0.2	39
0.1	33
0.6	36
1.1	23
0.8	25
0.3	24
0.5	31
1.2	21
0.2	35
1.1	21
0.7	21
1.2	29
0.8	20
0.1	29
0.8	28
1.1	17
1.1	17
0.4	24
0.2	35
0.2	35
0.5	31
0.6	20
0.4	20
0.4	20
0.3	23
0.7	23
1.1	20
0.5	20
0.3	21
1.3	4
0.5	17
0.1	24
0.6	21
1.7	7
0.5	20
0.1	24
0.6	17
0.3	21
0.4	23
0.1	21
1.6	8
0.4	17
0.1	20
1.2	8
0.8	8
1.3	8
0.2	19
1.1	7
0.3	23
0.7	12
2.0	4
0.1	29
1.5	4
0.1	21
0.8	7
1.3	3
0.2	13
0.4	9
0.3	12
0.4	9
0.6	7
0.1	17
0.1	17
0.2	9
0.8	1
0.2	7
0.9	3
0.3	7
0.2	4
0.3	5
0.1	5
0.6	9
0.2	12
0.1	0
0.3	4
0.5	3